Budi Surodjo, and Saifullah Ali. 2024. “Struktur Subring Deret Pangkat Tergeneralisasi Sebagai Himpunan Matriks Berindeks Monoid”. Limits: Journal of Mathematics and Its Applications 21 (2):191-200. https://journal.its.ac.id/index.php/limits/article/view/5502.